what force does a person have to exert on one side of a seesaw if the other person weighs 70kg and is the same distance away from the pivot (2m) on the other side of the seesaw?
70kg x 9.8 = 686N x 2 = 1372 Nm, as 2m away again, divide by 2 = 868 Newtons
MB
Related Physics GCSE answers
All answers ▸Give two features of polar orbits. Suggest the use of a satellite in a polar orbit.
Explain the difference between a longitudinal and transverse wave.
What are the differences between sound waves and electromagnetic waves?
If a box full of feathers and a box full of bricks were to be dropped at the same time and from the same height, which one would hit the ground first?